- Frame size175 mm6.9 in
- Max airflow311 m³/h183.34 CFM
- Max static pressure108.55 Pa0.44 in. wg
- Voltage100-240 V
- Speed2,400 rpm
- Noise45 dB(A)
LWAE17251SL-03 EC Cooling Fan 175 mm
175 mm | EC | Max airflow 183.34 m³/h | Max static pressure 108.55 Pa | 45 dB(A)
- Direct from LONGWELL
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · RoHS · ETL on request
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Performance curve (P-Q) LWAE17251SL-03
Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade (1 here, rated 100-240 V). Data version: catalogue curve re-digitised 2026-09-20 (axis-calibrated, cross-checked). The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.
Dimensional drawing LWAE17251SL-03
Files for LWAE17251SL-03: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWAE17251SL-03
LWAE17251SL-03 is a LONGWELL EC Cooling Fan from the EC Cooling Fans range, frame size 175 mm, rated 100-240 V EC, maximum airflow 183.34 m³/h, maximum static pressure 108.55 Pa, noise 45 dB(A). The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.
Technical data
| Model | LWAE17251SL-03 |
|---|---|
| Series | LWAE17251 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 100-240 V |
| Current | 0.1 A |
| Speed | 2,400 rpm |
| Max. airflow | 311 m³/h |
| Max. airflow (CFM) | 183.34 CFM |
| Max. static pressure | 108.55 Pa |
| Noise | 45 dB(A) |
| Frame size | 175 mm |
| Dimensions | 175x51mm |
Typical applications
- Power supplies and inverters
- Telecom and server cabinets
- Battery packs and EV chargers
- Medical and laboratory equipment
Series LWAE17251: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.
Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.
Company certificates
Scans of original documents held by Ningbo Longwell Electric Technology Co., Ltd.: the company ISO 9001 / 14001 / 45001 management-system certificate. Click a scan to open the original.
ISO 9001 / 14001 / 45001Management systems of Ningbo Longwell Electric Technology Co., Ltd. (company certificate).
PDFISO 9001 / 14001 / 45001 management system certificateNeed a Declaration of Conformity for this model and your destination market? Ask us — we arrange additional certification on request.
How to order LWAE17251SL-03
Most first orders follow the same eight steps. Quantities, terms and lead times are confirmed in your quotation.
- 1SelectFind models by duty point in the selector or by model number, compare on the curve and add them to your RFQ list.
- 2Engineering checkWithin 1 business day you receive the duty-point check on the curve, price and lead time.
- 3SamplesStock models ship in 1–3 days.
- 4Validation supportDatasheets, drawings, wiring diagrams and DoC per model; test reports, CAD and register maps after a short project check or NDA.
- 5Order & paymentProforma invoice; first orders on T/T 30 / 70.
- 6Production & release15–30 days at the partner factory that builds your model, then inspected and released to LONGWELL standards with outgoing sampling to AQL 2.5.
- 7ShippingFOB / CIF / DDP by sea from Ningbo or Shanghai; express and air on EXW / FCA / DAP.
- 8After-sales12 months standard, extendable to 18–24 months by project agreement; test records retained for 5 years; 8D closed-loop for any issue; annual technical review for framework customers.
Test & release at LONGWELL
Specified and drawn by LONGWELL; built to LONGWELL drawings by qualified partner factories; inspected and released to LONGWELL standards before shipment.
See test and release photos (8)
Alternatives with the same frame size (175 mm · EC)
Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.
| Model | Max airflow | Max static pressure | Speed | Power | Noise | Voltage | |
|---|---|---|---|---|---|---|---|
| LWAE17251SL-03 this model | 311 m³/h | 108.55 Pa | 2,400 rpm | — | 45 dB(A) | 100-240 V | |
| LWAE17251SM-02 | 205 m³/h | 133.89 Pa | 2,800 rpm | — | 51 dB(A) | 100-240 V | View |
| LWAE17251SH-01 | 237.16 m³/h | 176.9 Pa | 3,200 rpm | — | 56 dB(A) | 100-240 V | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Other models in the LWAE17251 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWAD17251MX-02172 mm · 498 m³/h · 269 Pa · DCadjacent size
LWAD17251HX-01172 mm · 560.4 m³/h · 340 Pa · DCadjacent size
LWAD17251ML-05172 mm · 311.4 m³/h · 105 Pa · DCadjacent size
LWAD17251MM-04172 mm · 373.8 m³/h · 151 Pa · DCadjacent size
LWAD17251MH-03172 mm · 436.2 m³/h · 206 Pa · DCadjacent size
LWAD17251LL-05172 mm · 311.4 m³/h · 105 Pa · DCadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Cooling Fans & Blowers · select by duty point
Go deeper on longwellfans.com
Application guides, project stories and engineering calculators for cooling fans & blowers — on our main site.
Solutions
- Battery energy storageBESS containers and cabinets
- Data center coolingCRAH, FanGrid, server rooms
- Home appliance coolingHoods, ovens, dryers, air conditioners